{"id":19499,"date":"2016-06-20T18:13:24","date_gmt":"2016-06-20T18:13:24","guid":{"rendered":"https:\/\/usoceandiscovery.org\/?page_id=19499"},"modified":"2022-08-10T08:07:37","modified_gmt":"2022-08-10T08:07:37","slug":"2008-2009-schlanger-fellow-greg-horn","status":"publish","type":"page","link":"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/","title":{"rendered":"2008-2009 Schlanger Fellow &#8211; Greg Horn"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:var(--awb-color3);border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1456px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_3 1_3 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 2% 0px 0px 0px;\"><div style=\"text-align:center;\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><a class=\"fusion-no-lightbox\" href=\"\/wp-content\/uploads\/2016\/06\/Horn_Schlanger.jpg\" target=\"_self\" aria-label=\"Horn_Schlanger\"><img decoding=\"async\" width=\"250\" height=\"300\" src=\"https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2016\/06\/Horn_Schlanger.jpg\" alt class=\"img-responsive wp-image-19146\" srcset=\"https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2016\/06\/Horn_Schlanger-125x150.jpg 125w, https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2016\/06\/Horn_Schlanger-141x169.jpg 141w, https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2016\/06\/Horn_Schlanger-165x198.jpg 165w, https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2016\/06\/Horn_Schlanger-217x260.jpg 217w, https:\/\/usoceandiscovery.org\/wp-content\/uploads\/2016\/06\/Horn_Schlanger.jpg 250w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/><\/a><\/span><\/div><style type=\"text\/css\">@media only screen and (max-width:1024px) {.fusion-title.fusion-title-1{margin-top:10px!important; margin-right:0px!important;margin-bottom:15px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-1{margin-top:10px!important; margin-right:0px!important;margin-bottom:10px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-two\" style=\"margin-top:10px;margin-right:0px;margin-bottom:15px;margin-left:0px;\"><h2 class=\"title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:28;line-height:var(--awb-typography1-line-height);\">GREG HORN<\/h2><\/div><div class=\"fusion-text fusion-text-1\" style=\"text-align:center;margin-top:0%;\"><p><strong>University of Southern California<\/strong><br \/>\n<strong><em>Encouraging Life in the Slow Lane: Development of Solid-Substrate Coninuous Culture Techniques for the Enrichment of Deep-Biosphere Organisms<\/em><\/strong><\/p>\n<\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-0{width:33.333333333333% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-0 > .fusion-column-wrapper {padding-top : 2% !important;padding-right : 0px !important;margin-right : 5.76%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 5.76%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-0{width:33.333333333333% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 5.76%;margin-left : 5.76%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_2_3 2_3 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-2\"><p><strong>Abstract<\/strong><\/p>\n<p>Continuous culturing techniques have enabled laboratory based enrichments of slow-growing organisms for subsequent physiological, genetic, and biochemical studies that are not possible using classical batch culture and isolation techniques for some organisms.\u00a0 Subsurface aquifer systems harbored in basalt basement may harbor microorganisms with diverse metabolic capabilities.\u00a0 The open porosity in basalt through which hydrological flow occurs offers sites for microbes to attach to and create biofilms.\u00a0 Redox disequilibria to support microbial growth may be encountered by the juxtaposition of chemically reduced rocks and oxygenated components of seawater.\u00a0 The fluids flowing through these microenvironments allow for continuous replenishment of dissolved substrates for growth and facilitate dispersal from and recruitment to the attached microbial communities.\u00a0 I propose to develop system of solid-substrate continuous culture techniques using sequencing batch reactors that will enable further study of the microbial communities that may contribute significantly to the biogeochemistry of subsurface environments.<\/p>\n<p><strong>Biography<\/strong><\/p>\n<p>After working various jobs, I decided to pursue a career in geosciences. Following a cross-country move from Washington D.C. to Washington State I attended Seattle Central Community College and the University of Washington where I received B.S. degrees in both Earth and Space Sciences and Microbiology. Currently I am entering my third year as a PhD student at the University of Southern California in Marine Environmental Biology working in the lab of Katrina Edwards. My principle interest in the geosciences is geomicrobiology and how biogeochemical processes are mediated by microbial metabolisms, specifically on the nitrogen cycle and weathering of basalts on and below the seafloor. The research supported by the Schlanger Fellowship will focus on developing continuous culturing techniques on hard rock substrates to cultivate subsurface microbes in laboratory settings. When I am not working on science I spend time reading fiction, obsessing over ice hockey, and doing volunteer work.<\/p>\n<\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-1{width:66.666666666667% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-1 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 2.88%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 2.88%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-1{width:66.666666666667% !important;order : 0;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 2.88%;margin-left : 2.88%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-1{width:100% !important;order : 0;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-1{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":0,"parent":19101,"menu_order":64,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"footnotes":""},"class_list":["post-19499","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>2008-2009 Schlanger Fellow - Greg Horn - U.S. Science Support Program<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2008-2009 Schlanger Fellow - Greg Horn - U.S. Science Support Program\" \/>\n<meta property=\"og:url\" content=\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/\" \/>\n<meta property=\"og:site_name\" content=\"U.S. Science Support Program\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-10T08:07:37+00:00\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/\",\"url\":\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/\",\"name\":\"2008-2009 Schlanger Fellow - Greg Horn - U.S. Science Support Program\",\"isPartOf\":{\"@id\":\"\/#website\"},\"datePublished\":\"2016-06-20T18:13:24+00:00\",\"dateModified\":\"2022-08-10T08:07:37+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/usoceandiscovery.org\/past-schlanger-fellows-old\/2008-2009-schlanger-fellow-greg-horn\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/usoceandiscovery.org\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"2008-2009 Schlanger Fellow &#8211; 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